Then the new step function space is introduced and stability problem for the finite difference scheme is discussed by means of variational approximation method.

然后引入新的步长函数空间，并在这个空间上，采用变分近似法讨论该格式的稳定性问题。

youdao

Then the new function space is introduced and the stability problem for the finite difference scheme is discussed by means of variational approximation method in this function space.

然后引入新的函数空间，并在这个空间上，采用变分近似法讨论了该格式的稳定性问题。

youdao